(19)
(11) EP 0 728 646 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
16.04.1997 Bulletin 1997/16

(43) Date of publication A2:
28.08.1996 Bulletin 1996/35

(21) Application number: 95120692.9

(22) Date of filing: 28.12.1995
(51) International Patent Classification (IPC)6: B60T 8/48
(84) Designated Contracting States:
DE FR GB

(30) Priority: 28.12.1994 JP 327541/94
13.10.1995 JP 265687/95

(71) Applicant: NIPPONDENSO CO., LTD.
Kariya-city Aichi-pref., 448 (JP)

(72) Inventors:
  • Suzuki, Hideaki, c/o Nippondenso Co., Ltd.
    Kariya-city, Aichi-pref. 448 (JP)
  • Ohno, Sadayuki, c/o Nippondenso Co., Ltd.
    Kariya-city, Aichi-pref. 448 (JP)

(74) Representative: KUHNEN, WACKER & PARTNER 
Alois-Steinecker-Strasse 22
D-85354 Freising
D-85354 Freising (DE)

   


(54) Brake fluid pressure control apparatus


(57) A brake fluid pressure control apparatus which can switch from brake fluid pressure control to normal brake operation immediately after the brake fluid pressure control terminates has a master cylinder (2), pressure control valves (4, 5, 6 and 7) for controlling the brake fluid pressure in wheel cylinders (11, 12), a pump (8) for pumping out the brake fluid to the wheel cylinders (11, 12), an accumulation chamber (10) connected to an inlet of the pump (8) and accumulating the brake fluid in an airtight condition to generate negative pressure, a cut-off valve (3) for cutting off the flow of the brake fluid from the master cylinder (2) to wheel cylinders (11, 12) and a return conduit (21) connected between the wheel cylinders (11, 12) and the accumulation chamber (10).






Search report